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Building Technologies Modular Heating Controller RMH760B CE1P3133en
HVAC Products 14 Communication 05.02.2007
If, on a slave controller, “Autonomous“ is entered as time switch operation plus a time
switch program, the latter will be ignored. In any case, the time switch program used is
that of the master controller. This also applies to special days.
14.5 Heat demand and load control
Heat demand and the load control signals are exchanged via the heat distribution
zones.
Main menu > Commissioning > Communication > Distribution zones
Operating line Range Factory setting
Heat distr zone source side* ---- / 1…31 ----
Heat distribution zone 1…31 1
Heat distr zone consumer side** ---- / 1…31 2
* The operating line is only displayed on the main controller
** The operating line is only displayed on the primary controller
A
3133S8
B
C
A
Heat distribution zone, heat generation side
B
Heat distribution zone, consumer side
C
Heat distribution zone
The 3 heating circuits and DHW heating are ready connected to the main controller,
which means that they cannot be operated by the primary controller, but only parallel to it.
The primary controller also is ready connected to the main controller and cannot be
operated parallel to the main controller.
The main controller in turn is ready connected to the boiler. The heat distribution zone
on the heat generation side need be set only when there is
no boiler.
During boiler operation, the heat demand is acquired via the heat distribution zone. If
no main controller is used, its plant elements, such as mixing valve and pump, will not
be needed.
The heat distribution zone on the heat generation side can only be set when using a
main controller
without boiler. It will not be required when using a boiler.
The heat distribution zone on the consumer side can only be set when used in connec-
tion with a primary controller.
In the following plant, boiler and DHW are accommodated in controller 1, and main
controller and heating circuits in controller 2. The example shows clearly the role of the
main controller as the interface between 2 zones. It receives the heat requests and
generates the resulting heat demand, which is forwarded to the boiler.
Boxes “Controller 1“ and ”Controller 2“ at the bottom show the zone settings.
Time switch program in
slave controllers
Communication
Note
Example
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